(2,5-dioxopyrrolidin-1-yl) 4-(bromomethyl)benzoate

4-甲氧基甲基苯甲酸

4-(氰基甲基)-苯甲酰氯(9ci)

4-(pyridin-4-ylsulfanylmethyl)benzoic acid

4-羟甲基-3-硝基苯甲酸